GB1407467A - Interference suppression circuits for radar receivers - Google Patents

Interference suppression circuits for radar receivers

Info

Publication number
GB1407467A
GB1407467A GB5101572A GB5101572A GB1407467A GB 1407467 A GB1407467 A GB 1407467A GB 5101572 A GB5101572 A GB 5101572A GB 5101572 A GB5101572 A GB 5101572A GB 1407467 A GB1407467 A GB 1407467A
Authority
GB
United Kingdom
Prior art keywords
delay
radar
threshold
circuit
jamming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5101572A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of GB1407467A publication Critical patent/GB1407467A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/36Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

1407467 Pulse radar SIEMENS AG 6 Nov 1972 [5 Nov 1971] 51015/72 Heading H4D In a pulse radar subject to frequency-swept jamming, its effect is reduced by an arrangement incorporating two delay devices 10, 16 each producing a delay of a multiple integral of the wanted standard echo duration T. In the embodiment an M.T.I. pulse radar has a fixedecho eliminating filter 7 (which may be digital) and a rectifier 8 the video signal output from which Fig. 3a, consists for example of resultant jamming pulses S1, S2, S3 and a wanted echo N in one radar pulse recurrence period EP. A circuit 11 of threshold W produces the output Fig. 3b, and a detector 12 and delay 16 feeds inputs Fig.3c, 3d, into an "interference substitution" circuit 14 to which is applied also the delayed version Fig. 3e of Fig. 3a. A "substitution level" store is connected to circuit 14, the output from the latter being as shown in Fig. 3f. The delay in devices 10, 16 and the threshold W in device 11 may all be adjustable. The substitution level may advantageously be equal to the mean noise D.C. voltage which may also be the threshold W. The effect of the invention on a scanning beam radar is explained Figs. 4 to 6 (not shown). When C.W. jamming is experienced the invention may be disadvantageous; it is therefore arranged that under these circumstances it be switched out.
GB5101572A 1971-11-05 1972-11-06 Interference suppression circuits for radar receivers Expired GB1407467A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712155074 DE2155074C3 (en) 1971-11-05 1971-11-05 Circuit arrangement for suppressing longer than the useful pulses lasting, in particular wobbled, interference signals for a pulse radar receiver

Publications (1)

Publication Number Publication Date
GB1407467A true GB1407467A (en) 1975-09-24

Family

ID=5824328

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5101572A Expired GB1407467A (en) 1971-11-05 1972-11-06 Interference suppression circuits for radar receivers

Country Status (5)

Country Link
DE (1) DE2155074C3 (en)
FR (1) FR2158496B1 (en)
GB (1) GB1407467A (en)
IT (1) IT970156B (en)
NL (1) NL7214911A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528565A (en) * 1981-04-27 1985-07-09 Siemens Aktiengesellschaft Pulse doppler radar receiver with a circuit for reducing spurious signals
GB2257862A (en) * 1984-07-26 1993-01-20 Marconi Co Ltd Radar receiver
CN109932722A (en) * 2017-12-18 2019-06-25 恩智浦美国有限公司 For eliminating the device and method of interference signal
CN118091550A (en) * 2024-04-24 2024-05-28 中国电子科技集团公司信息科学研究院 Multi-interference-source sensing method and device based on distributed radar and electronic equipment

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015316C1 (en) * 1980-04-22 1991-03-28 Siemens Ag Pulse Doppler radar with facilities for carrying out ECCM measures
FR2745390A1 (en) * 1984-01-27 1997-08-29 Thomson Csf Counter measure device for receiving coherent radar signals
DE102019114551A1 (en) 2019-05-29 2020-12-03 Infineon Technologies Ag DETECTION OF INTERFERENCE-RELATED INTERFERENCE IN FMCW RADAR SYSTEMS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1322498A (en) * 1961-05-01 1963-03-29 Thomson Houston Comp Francaise Improvements to pulse circuits
FR1446016A (en) * 1962-12-21 1966-07-15 Gen Electric Improvements to signal suppressor circuits

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528565A (en) * 1981-04-27 1985-07-09 Siemens Aktiengesellschaft Pulse doppler radar receiver with a circuit for reducing spurious signals
GB2257862A (en) * 1984-07-26 1993-01-20 Marconi Co Ltd Radar receiver
GB2257862B (en) * 1984-07-26 1993-06-09 Marconi Co Ltd Radar receiver
CN109932722A (en) * 2017-12-18 2019-06-25 恩智浦美国有限公司 For eliminating the device and method of interference signal
CN118091550A (en) * 2024-04-24 2024-05-28 中国电子科技集团公司信息科学研究院 Multi-interference-source sensing method and device based on distributed radar and electronic equipment

Also Published As

Publication number Publication date
DE2155074B2 (en) 1978-01-05
FR2158496B1 (en) 1977-04-01
DE2155074A1 (en) 1973-05-10
FR2158496A1 (en) 1973-06-15
NL7214911A (en) 1973-05-08
IT970156B (en) 1974-04-10
DE2155074C3 (en) 1978-08-17

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee